To ensure that the fiberglass fiber yarn is wound continuously and regularly onto the mandrel, a precise relative motion between the guide wire and the mandrel must be maintained. This means following a specific winding pattern, known as the winding law. The winding law is crucial for achieving high-quality results in the final product, as it directly affects the directional strength distribution of the structure.
During the winding process, the length of the wear-resistant hammer cylinder is determined by the width of the fiber yarn strip. However, many designs focus primarily on the mechanical properties of the cylinder without considering the practical aspects of production. As a result, there can be discrepancies between the intended winding angle and other design parameters. These inconsistencies often require adjustments to obtain accurate winding parameters and ensure proper convergence during the process.
There are generally two approaches to designing and modifying these winding parameters. The first involves adjusting the dwell angle to maintain the desired width and winding angle of the fiber layer. The second approach fixes the dwell angle by adjusting both the width and the winding angle of the fiber yarn. Each method has its own advantages and limitations depending on the application.
The first modification allows the central part of the cylinder to closely match the design specifications. However, this method can significantly affect the dwell angle, especially when the designed dwell angle is zero. In such cases, the normal winding requirements may not be met, which can negatively impact the quality of the ends of the wound product. On the other hand, the second method ensures optimal winding performance while maintaining the required dwell angle without compromising the original design. Due to its effectiveness, the second correction method is more commonly used in modern practices.
Understanding and applying the correct winding law is essential for producing consistent and reliable composite structures. Whether working with traditional or advanced winding systems, careful attention to the relationship between the mandrel, guide wire, and fiber placement is always necessary. Proper parameter adjustment not only improves the structural integrity of the product but also enhances its overall performance and durability.
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